If -4 is the zero of polynomil P(x)=x2 +11x+k fibd the value of k
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Since - 4 is zero of polynomial hence if we put the value of x as - 4 we get 0 as resultant .
So,
x² + 11x + k
( - 4 )² + 11 × ( - 4 ) + k = 0
16 - 44 + k = 0
- 28 + k = 0
k = 28
So,
x² + 11x + k
( - 4 )² + 11 × ( - 4 ) + k = 0
16 - 44 + k = 0
- 28 + k = 0
k = 28
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